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Author Topic: Unknown device, truly unknown (Vista)  (Read 1000 times)
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« on: September 03, 2007, 01:07:33 PM »

History:  Medion M3 Director 3000 system.  P4-HT 3.0GHz, Came with XP Media Center Edition 2002. 

Decided to upgrade to Vista Home Premium, everything works fine except for "unknown Device" in device manager.  This Unknown Device was not there before the Vista Installation.

I dont know what this unknown device is.  Used the Medion XP OEM cd's to search for driver, windows update and searched the HDD but no luck.

Like I said, everything works "ok" on the computer, music, video and TV Play fine but a few things that have went wrong are:

1.) dxdiag pulls an error that says "Error: Problem getting extra sound info" and under the Sound1 Tab in dxdiag, it says: The file cmuda.sys is not digitally signed, which means that it has not been tested by Microsoft's Windows Hardware Quality Labs (WHQL).  You may be able to get a WHQL logo'd driver from the hardware manufacturer."

2.)  I play World of Warcraft and I do have choppy and popping sound effects during game play which is not a known issue according to Blizzard but the problem has been resolved for the most part by deleting some folders in the directory of the game and letting the game recreate them during game restart.

3.) Vista Upgrade Advisor said everything was compatible before upgrading except it could not say yes or no to the following 2 devices:

     a.)  nVidia WDM Video Capture (universal)
     b.)  nVidia WDM A/V Crossbar

Anyone have any suggestions as to where I can start to get this resolved.

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« Reply #1 on: September 09, 2007, 11:50:10 AM »

Without being too Vista savvy (especially since I detest the release of beta software in any form except to qualified testers), I have to come to the conclusion that those two items are my main culprits for your problems. The thing is, Vista isn't 100% compatible with all hardware and/or sofware out there, and as such shouldn't be installed on any machine, unless the machine was built specifically to run under Vista.

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